Abstract: A breaking apparatus (1) which includes; a housing (3); a striker pin (4) having a driven end and an impact end, locatable in said housing (3) in at least one retaining location to protrude said impact end through the housing (3); a moveable mass (2) for impacting on the driven end of the striker pin (4), and a shock-absorber (7a, b) coupled to the retaining locations. The shock-absorber (1) also includes at least two elastic (12) and at least one inelastic (13) layer in a first shock-absorbing assembly (7a) located internally within the housing about the striker pin (2) between the retaining location and the striker pin impact end. The shock-absorbing assembly (7a) is configured to allow movement of the shock absorber parallel to, or co-axial with the striker pin longitudinal axis during use.

Abstract: A hammer assembly (1) for breaking, levering and raking material, the hammer assembly includes a hammer (1) and an articulated control linkage (3). The hammer includes: a movable mass capable movement along an impact axis (14), an elongated 5 tool (23) having a longitudinal axis substantially parallel or coaxial with the impact axis(4), a primary pivot (6) attachment point for attaching the hammer (1) to a distal end of an operating arm (2) attached to the carrier for pivotal movement of the hammer (1) about a primary axis (6) orthogonal to the impact axis (14). The control linkage (3) includes first (4) and second linkss (5) for effecting pivotal movement of the hammer (1) about the primary axis (6) in response to movement from a drive attached to the operating arm (2).

Abstract: A breaking apparatus (1) including a movable mass (3) for impacting on a striker pin (4), a housing (2) and a striker pin (4) configured to partially protrude through the housing (2), the apparatus (1) characterized in that the striker pin (4) is configured to be beatable in a plurality of retaining locations relative to the housing (2).